Modeling and analysis on output errors of precision linear vibration table

The precision linear vibration table is the test equipment of IMUs. It is used to generate acceleration higher than gravity for exciting the high-order drift errors of IMUs. The inevitable output acceleration errors of the vibration table will affect the test accuracy. In order to improve the test accuracy under the existing equipment conditions, an investigation on establishing the error model of vibration table output errors is presented. According to the analysis of error sources and the study of error transaction, the vibration table output error model is established. The validity of the proposed model is verified by the data analysis of experiments, and the suggestion is provided to improve the test accuracy of the vibration table.